Aqaaid

Saying words to overcome sadness and learning positive things from a person who practices shirk

Q:

1. I learnt a technique to help with sadness, this is how the technique works, you say a positive word very slowly, with intention this word will have a positive effect, is this permissible or its kufr?

2. Someone who practices shirk and kufr philosophy, would it be permissible to learn from him positive things that doesn’t have shirk and kufr?